Locking washer



FIG. 1 is a top perspective view of a locking washer according to my new design;

FIG. 2 is a side view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top perspective view of a second embodiment of a locking washer according to my new design;

FIG. 6 is a side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof. 

The ornamental design for a locking washer, as shown and described. 